A device including a housing having an access opening, a swing arm mounted to the housing and configured to be selectively pivoted toward and away from the access opening, and a closure captured by the swing arm. The closure can be configured to be selectively moved in a substantially vertical motion relative to the swing arm between a retracted position and an inserted position at least partially in the access opening and can have locking features for cooperating with engagement features in the device to move the closure into a closed and sealed configuration.

A device including a housing having an access opening, a swing arm mounted to the housing and configured to be selectively pivoted toward and away from the access opening, and a closure captured by the swing arm. The closure can be configured to be selectively moved in a substantially vertical motion relative to the swing arm between a retracted position and an inserted position at least partially in the access opening and can have locking features for cooperating with engagement features in the device to move the closure into a closed and sealed configuration.

The invention relates to the field of portable measuring instruments, combining mechanical and electronic means to measure the concentration of solids in a fluidic medium, as well as including means to concentrate and store a plurality of coherent data for use in different sectors, mainly commercial, industrial and laboratory; consisting of a body in the form of a box with fixing tabs, a lifting eye, an electronic board which integrates the processor circuit blocks, the 12C port circuit, the power input circuit and its connector, AD converter circuit of the load cell, slope module circuit, temperature sensor circuit collected via the input connection, circuit of the record button and tare button of the HMI/display and recording module and its USB input connection.